Data Structures

Code Examples

using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
			
public class Program
{
  public static void Main()
  {
    //Array
          /*int[] java = new int[] { 70, 88, 30 };
          //Array.Sort(java);
          foreach(int i in java){
            Console.WriteLine(i);
          }
          */
          
          //ArrayList
          /*
          ArrayList myArray = new ArrayList();
          myArray.Add("Abisola");
          myArray.Add("Java");
          myArray.Add("Apple");
          myArray.Add(10);
          myArray.Add(33);
          myArray.Add(56);
          myArray.Add(12);
          myArray.Add(23);
          //myArray.Sort();
          
          
          Console.WriteLine("myArray has {0} Capacity", myArray.Capacity);
          Console.WriteLine("myArray has {0} Element", myArray.Count);
          myArray.RemoveAt(3);
          Console.WriteLine("\nThe elements in my array are:");
          foreach (object j in myArray){
            Console.WriteLine(j);
          }
          myArray.Reverse();
          myArray.Insert(3, 10);
          Console.WriteLine("\nReversed list with additonal element");
          foreach (object j in myArray){
            Console.WriteLine(j);
          }
          
          int[] statistics = new int[] { 76, 40, 90 };
          foreach(int j in statistics){
            myArray.Add(j);
          }
          
          myArray.AddRange(java);
          Console.WriteLine("\n");
            
          foreach (object j in myArray){
            Console.WriteLine(j);
          }
          Console.WriteLine("\nPrint out only strings");
          foreach (object u in myArray){
            if (u is string){
              Console.WriteLine("I am a String: {0}", u);
            }
          }
          
          */
          
          //List
          /*
          List<int> myList = new List<int>();
          myList.Add(78);
          myList.Add(95);
    			myList.Add(23);
          myList.Add(15);
          myList.Add(23);
          Console.WriteLine("\nMy new List");
          foreach(int i in myList){
            Console.WriteLine(i);
          }
          myList.Sort();
          Console.WriteLine("\nMy sorted List");
          foreach(int i in myList){
            Console.WriteLine(i);
          }
          
          Console.WriteLine("\nMy List Sum is: "+ myList.Sum());
          
          Console.WriteLine("\nMy Distinct List contains: ");
    			List<int> newList = myList.Distinct().ToList();
    			foreach(int i in newList){
            Console.WriteLine(i);
          }
          */
          
    			//Linked List
          
          /*
          LinkedList<string> myLink = new LinkedList<string>();
          myLink.AddLast("Stephen");
          myLink.AddLast("Hatem");
          myLink.AddLast("Emmanuel");
          myLink.AddFirst("Gordon");
          Console.WriteLine("My Linked List contains");
          
          foreach (var i in myLink)
          {
              Console.WriteLine(i);
          }
          */
          
          //Dictionary
          /*
          Dictionary<string, int> myDictionary = new Dictionary<string, int>();
          myDictionary.Add("Age", 25);
          myDictionary.Add("Grade", 80);
          
          Console.WriteLine("\nAge is {0}", myDictionary["Age"]);
          List<string> myKey = new List<string>(myDictionary.Keys);
          for (int i = 0; i < myKey.Count; i++)
          {
              int myInt = myDictionary[myKey[i]];
            	Console.WriteLine(myInt);

          }
          */
    
          //Hastable
    			/*      
    			Hashtable myHash = new Hashtable();
          myHash["Name"] = "Abisola";
          myHash[1] = "Name";
          myHash[3] = "is";
    			myHash[2] = "my";
    			//myHash.Add("Grade", 80);
    			Console.WriteLine("Hashtable contains {0} elements \nAnd they are: ", myHash.Count);
          foreach (DictionaryEntry entry in myHash)
          {
            Console.WriteLine("{0}, {1}", entry.Key, entry.Value);
          }
	  
	  for (int i = 0; i < myHash.Count; i++){
						Console.WriteLine("My Index is "+ i);
            Console.WriteLine("And i contain: "+ myHash[i]);
          }
	  
    			*/
          
          //Stack
    			/*
          Declaration types
          Stack myStack = new Stack();
          Stack<string> myStack = new Stack<string>();
          */
    			/*
    			Stack<string> myStack = new Stack<string>();
          myStack.Push("Chanel");
          myStack.Push("Prada");
          myStack.Push("Gucci");
    			Console.WriteLine();
          Console.WriteLine("My Top Value is "+myStack.Peek());
					Console.WriteLine();
          Console.WriteLine(myStack.Pop());
    			Console.WriteLine();
          Console.WriteLine("My Top Value is "+myStack.Peek()+"\n");
    			foreach(string s in myStack)
          {
            Console.WriteLine(s);
          }
          */
    			
    			/*
          Stack myStack = new Stack();
          myStack.Push("Chanel");
          myStack.Push("Prada");
          myStack.Push("Gucci");
    			Console.WriteLine();
          Console.WriteLine("My Top Value is "+myStack.Peek());
					Console.WriteLine();
          Console.WriteLine(myStack.Pop());
    			Console.WriteLine();
          Console.WriteLine("My Top Value is "+myStack.Peek());
          */
    
    			//Queue
    			/*
    			Queue<int> myQueue = new Queue<int>();
          myQueue.Enqueue(5);   
          myQueue.Enqueue(10); 
          myQueue.Enqueue(15);
          myQueue.Enqueue(20);
          foreach (int i in myQueue)
          {
              Console.WriteLine(i);
          }
    			*/
    			
  }
}